2.2 KiB
Stage 1: Configure
The first stage in the Scaling Journey <../index> is Configure.
This stage is about fine-tuning configuration options and optimizing the parameters for your OpenStack cluster, so that it can handle additional load. The default values for configuration parameters in OpenStack are not always well-suited for handling scale, and OpenStack documentation does not always indicate which parameters to adjust with scale. This page aims to help answer those early questions.
Once your cluster is properly configured to handle scale, you can go
to the second stage of the Scaling Journey: Monitor <monitor>.
FAQ
Q: Which OpenStack distributions are recommended for use at large scale?
A:
Q: Which drivers or backends are recommended for use at large scale?
A:
Q: Which parameters should I adjust in OpenStack components before tackling scale ?
- A:
-
- Number or workers for each service
- DB connection (max_pool_size, max_overflow, etc.)
Q: Should I use memcached?
A: Yes, it will help a lot keystone (memcached will be used to store tokens instead of asking for new tokens on each call)
Resources
Large Scale Configuration guidelines for RabbitMQ </journey/configure/rabbitmq>Large Scale Configuration guidelines for Database </journey/configure/database>Large Scale Configuration guidelines (other/extra) </journey/configure/other>
External resources
- Neutron backends performance comparison: https://thesaitech.wordpress.com/2019/02/15/a-comparative-study-of-openstack-networking-architectures/
- Evaluation of performance before deployment
How to help
- Document better configuration defaults for large scale
- Collect input at https://etherpad.opendev.org/p/large-scale-sig-documentation
- Curate and add new content in configure resources
- Push to official doc, pointing back to the guidelines page